@Jerry would adding those txt records cause any issue to a wildcard redirect I use for myself?
I have xxxxx.com and an auto redirect by my dns provider so that anything sent to [email protected] is forwarded to [email protected] so when I give out the address I can see if it's been shared.
I like the idea of protecting against unauthorized use but wouldn't want to lose my throwaway capability.
I find email servers to be akin to dark arts so am at a loss here tbh.